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3 years ago

I NEED HELP, Order the rational numbers from least to greatest.

Mathematics

2 answers:

nikitadnepr [17]3 years ago

7 0

Answer:

1.1 2.1 2.2 i think that is correct

madam [21]3 years ago

5 0

Answer:

-2.1 , 1.1 , 2.2

Step-by-step explanation:

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In 1927, Charles Lindbergh was the first person to fly nonstop across the Atlantic Ocean. Today, Commercial airliners fly from N

mamaluj [8]

Answer:

a. 100 mph

b. 500 mph

Step-by-step explanation:

Let the speed of Lindbergh's plane be x.

Today's planes are 5 times faster, so their speed is 5x.

Today's planes speed is 400 mph faster than Lindbergh's speed.

x + 400 = 5x

5x = x + 400

4x = 400

x = 100

Lindbergh's speed was 100 mph

b. 5x = 5 * 100 = 500

Today's planes fly at 500 mph

5 0

4 years ago

What is the rate of change for f(x) =7 sin x-1 on the interval from x=0 to x=piover 2

Oksi-84 [34.3K]

$\bf slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ f(x_2)}}-{{ f(x_1)}}}{{{ x_2}}-{{ x_1}}}\impliedby 
\begin{array}{llll}
average\ rate\\
of\ change
\end{array}\\\\
-------------------------------$

$\bf f(x)= 7sin(x)-1 \qquad 
\begin{cases}
x_1=0\\
x_2=\frac{\pi }{2}
\end{cases}\implies \cfrac{f\left( \frac{\pi }{2} \right)-f(0)}{\frac{\pi }{2}-0}
\\\\\\
\cfrac{[7\cdot 1-1]~-~[7\cdot 0-1]}{\frac{\pi }{2}}\implies \cfrac{6-(-1)}{\frac{\pi }{2}}\implies \cfrac{6+1}{\frac{\pi }{2}}\implies \cfrac{7}{\frac{\pi }{2}}\implies \cfrac{14}{\pi }$

7 0

4 years ago

Plz help me well mark brainliest if correct!!.....

Murrr4er [49]

12 and 13 have the same amount of students. so B or C will work. please mark brainliest

8 0

3 years ago

Please help!!!!!!!

sladkih [1.3K]

I believe the answer is 11.3

6 0

3 years ago

How do you use estimation to help find the product of 2 decimals??

AlexFokin [52]

Dismiss the decimals as if they were not there. Then you multiple like a read number and write the answer. Adding the demcials back after you gort the answer

7 0

4 years ago